.help-tip {
    position: relative;
    text-align: center;
    background-color: #BCDBEA;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: inline-block;
    font-size: 14px;
    line-height: 26px;
    cursor: default;
    top: 2px
}

.mianliao-info {
    display: none;
    position: absolute;
    top: 0px;
    right: 190px;
    padding: 13px 30px 13px 20px;
    z-index: 1000;
    line-height: 28px;
    border-radius: 6px;
    box-shadow: 0 3px 10px #888 !important;
    -webkit-box-shadow: 0 3px 10px #888 !important;
    -moz-box-shadow: 0 3px 10px #888 !important;
    color: #000 !important;
    border: solid 1px #ddd;
    background: #fff;
    transition: .5s;
    min-width: 110px;
}
.mianliao-son {
    text-align:center;
    margin-bottom: 10px;
}
.mianliao-info:after {
    content: "";
    display: block;
    position: absolute;
    top: 80px;
    left: 153px;
    background: #fff;
    width: 10px;
    height: 10px;
    -webkit-transform: rotate(135deg);
}

.help-tip:before {
    content: '?';
    font-weight: bold;
    color: #fff;
}